Check-lock



J. C. BACKUS.

CHECK LOCK.

APPLICATION FILED OCT. 21. 1920.

Patented Mm. 29, 1921.

2 SHEETS-SHEET I.

INVENTOR.

A'TT0RNEYJ NORRIS PETERS. \NC.. Limb" WASHINGTON. D- (Iv 1. C. BACKUS.

CHECK LOCK.

APPLICATION FILED OCT. 21. 1920.

1,373, 1 1 2. Patented Mar. 29, 1921.

2 SHEETS-SHEET 2.

r I Brin /2s 1N VEN TOR.

I 'ATTORNEYI Bacnns,

UNITED sTArss Application To all whom it may concern:

lie it known that 1, JOHN CLAYTON a citizen of the United States, residing at rdmethport, in the county of Me- Kean and State ofPennsylvania, have invented certain new and useful Improvements inCheck-Locks, of which the following is a specification.

This invention relates to an improved hat and coat lock and has as oneof its principal objects to provide a device of this character the majorparts of which will all bepformed of sheet metal for thus eliminatingthe possibility of accidental breakage.

The invention has a further object to provide a device of the abovedescribed character wherein. by forming the parts of sheet metal, saidparts will, as compared with cast metal construction, possess superiorstrength.

And the invention has as a still further object to provide a hat andcoat lock employing ahoolr, a coasting latch, and a coacting lock bolt,and wherein the bolt will bear against the latch for holding the latchagainst pivotal movement and will also project through the latch forbracing the latch against sidewise movement.

Uther and incidental. objects will appear hereinafter.

In the drawings:

Figure 1 is a perspective view of proved hat and coat lock,

2 is a side elevation of the device,

Fig. 3 is a fragmentary front elevation partly in. section to illustratethe mounting of the head upon the hook employed,

Fig. 41- is a fragmentary perspective view showing the manner in whichthe hook and head are formed so as to mate,

Fig. 5 is an elevation showing the cover plate of the casing removed,

Fig. 6 is a perspective view showing certain parts of the devicedisassembled, and

fig. section showing the my im- 7 1s a detail mounting of the rackemployed upon the lock belt of the device.

The lock casing as well as the lock mechanism per 86, as disclosed.in-the present instance, is substantially identical with the showingofPatent No. 920,105, issued to me May 4, 1909, and I shall accordinglynow de scribe the casing and said mechanism only generally. As will beobserved, the casing includes a back. or base plate 10 having top andbottom forwardly directed flanges Specification of Letters Patent. filedOctober 21, 1920. Serial No.

PATENT OFFICE.

Patented Mar. 29, 1921.

11 while from the side margins of said plate extend rearwardly directedvertical flanges 12 having lateral ears or flanges 13 apex tured forreceiving suitable fastening devices for securing the casing to anysuitable support Closing the casing is a front cap having side flanges15 on which are formed spaced lugs inserted through suitable openings inthe back plate 10 for re movably securing the cap in position. Proectlngforwardly from the back plate 10 is a pm 16 upon which is pivoted a dogor pawl l coasting with said pawl is spring 18. Projecting forwardlyfrom the back plate is a second pin 19 over which is fitted a spring 20.Connected to one end of this spring is a link 21 while the opposite endportion of the spring is bent to provide a spring arm 22. Pivoted uponthe back plate is a guard 23 pressed. by the spring arm 22 into the pathof the pawl 17. At its upper end said guard is formed with an eX-tension 24 projecting rearwardly through a suitable slot in the backplate and secured to said plate at its rear side is aguide 25 adapted tofreely receivea key check 26. The extension 24L of the guard projectsinto the path of downward movement of the key check so that said checkwill, when depressed, first swing said. guard out of the path of thepawl. and will then engage a trip 27 upon thepawl for swinging the pawlto inactive position and releasing the lock bolt employed. hen thisoccurs the extension will cngagein a suitable notch in the key check forlocking the key against upward displacement.

The present invention has to do particularly with the peculiarconstruction of the hook, latch and lock bolt employed. Heretofore,these parts have been formed of cast metal, principally for the reasonthat it has seen found impossible, due to the peculiar shape of saidparts, to construct the parts of sheet metal. However, as the cast metalparts proved so unsatisfactory in practical use, said parts crackingcomparatively easilyand constantly becoming broken, it became imperativeto construct the parts in such manner that they would not be subject tothese defects. In the present invention, said parts are constructed ofsheet metal, it having been foundpossible to form the parts according tothe embodiment of the invention shown. A sheet metal hook 28 isemployed. This hook is pressed from a :tically disposed tip 29 andnermost side flange suitable sheet metal blank and issubstantially'channel shaped, the side flanges of-the hook xtending'from end to end thereof. At its inner end the hook is secured to, theback plate 10 of the casing, rivets or other suitable fastening devicesbeing engaged through said plate and through the bottom web of the hookfor firmly securing the hook in position depending from the casing. Atits outer end the hook is formed with a verthe side flanges thereof are,as shown in detail in Fig. provi led with notches 30 defining shoulders31 at their lower ends. outer end of the hook is a longitudinally curvedhead 32. This head is also pressed from a suitable sheet metal blankand, like the hook, is substantially channel shaped in cross section.Toward the center of the head the side flanges thereof are graduallywidened andmedially of said head the'inthereof is provided with notch 33while in the outermost side flange of the head are formed,'opposite thenotch, spaced slots 34:. The major width of the head is substantiallyequal to the major depth of the hook at its outer end so that the headmay be fitted upon the hook to extend transversely thereof, the notch 83snugly receiving the outer end portion of thehook therethrough so thatthe tip 29 projects between the side flanges of the head.

The bottom wall of V the notch 33 seats against the'upper face of thehook while the shoulders 31 project through the slots {E lseating'against the bottom walls of saic securing the head in position.

jmounted upon the hook .moveinenttoward and away from sllotsso that thevertical walls of the notches thus confront the inner face of theoutermost fiange'of the head. h s will thus be seen, the side flanges ofthe head will sustain said head upon the hook while said flanges willalso cooperate withithe hook for holding the head against transverse vthe casing. Engaged through the head flanges and through the tip 29 ofthe hook is a rivet or other approved fastening device 35 firmlySwingingly to extend transversely across the bight thereof is a latch86.

I This latch is also pressed from a suitable sheet metal blank and 18substantially channel shapedin cross section.

nally curved arms 37 embracing the At the inner end of the body of thelatch, the side flanges thereof arejextended to provide longitudishankof the hook 28 immediately below the lower end of the casing andextending through said arms and through the hook flanges is a pivot pin38 swingingly connecting'the latch with the hook. At the outer endportion of the latch body the side flanges thereof are, aspartieularlyshown in Fig. :2,

V widened somewhat, and are formed with inwardly and downwardly slopingedges 39 Mounted upon the ormally resting against the upper convex f thehead 82 and. at their inner ends, ing shoulders d0 lyirq close to theinner do face of the head. it the outer ends of 1c flanges of the latch,the body wall or web ioroov is extended lorm a laterally flared endplate i l which is bent downwardly to abut said anges so that the endsof said plate project laterally at opposite sides of the latch providingcars 42 which may be grasped for lifting the latch.

to coact with the latch ll) is a ly ll-shaped lock bolt 43. This thebook 28 and latch 136, is ed from :1 suitable sheet meta as shown inFig. is substansnaped in cross sec on, the inter- 1c portion o the blankbeing pros-sod crerlappii tion to provide a l-.' isijitu' i. l fromwhich 0::-

dircctions lateral side lisciwed. the rib extends of the bolt to a pointe outer arm of the in nedril tend in oppo .u

il'zznges. is will be from the inner o near its outer en bolt be] .9;flared folly at the adjacent end said rib to f'" iii a head having aconcave lower ed {I0 adapted to it the slightly convex body wall cf thelatch 2K). The arms of the bolt ore "-ubstantially parallel and the n erarm t. cof is slidably rcblc openings in the top "l of the base plate iretained by the cap will be seen. the bolt is .ted upon the casing forany from the latch. ,fls shown i 2 the inner arm of the locl: bolt isiewhai" lon rcr than the outer m the eof so that the lock bolt may be ,cthe head ll-.5 of the outer arm t a point spaced laterally at the i.3b,. of the plane of the l n d 7? mad: while the inner arm of tedthrough th h t h s ill of the latch and ntino tut inner due of the bodywall or web thereof. The bolt will thus of" ely lock the latch againstupward swin no; movement while the concave lower edge of the head willcoact with the convex body wall o web of the latch for securing thelatch against being forcibly moved laterally from beneath the head.However, to additionally lock the latch against lateral movement, theinner arm of the lock bolt is, as previously explained, caused toproject through the latch so that, as will. be seen, the lower end ofsaid arm will be disposed to coact with the arms 37 of the latch forpreventing distortion of the latch e d its displacement from beneath thehead 45.

Struck from one of the side flanges of the lock bolt at a point alongthe inner arm thereof is an eye lG through which the link plate l4. thussl H movement t 1 closely con 1 upon the spring is engaged so thatagainst the latch and said s gning will, when the bolt is released, armsbetween the a retract the bolt upwardly and mounted upon means forlocking th the rib 4L4; of said belt at a point substan- 4. A check looki tially midway between the ends of the arm cooperating therewi a rack4:7. r s particularly shown in Figs. rib provided with a 6 and oi thedrawings, this rack is formed against said rib and oi. companionsections arranged side by side tions having tongu in aluitting relationresting against the rib opening, and a pa lei and extending from theinner edges of rack for lockingt said sections are tongues 48 fittedthrough 5. a suitable o ening in the rib and overchannel shaped turnedthereagainst. Thus, the rack sections notched at the free on are firmlysecured upon the bolt and, as will a tip and to define now be noted theside flange of the bolt adends of said no jacent the rack is, as bestshown in Fig. 6, channel shape cut away as indicated at 1-9 so that thelower tween the si may cooperate with the head flanges rack, this pawlbeing held in engagement and the other of the with the rack by thespring 18. Accord ted to receive the fla ingly, when the lock bolt isdepressed, the against said shoulde pawl will serve to lock the bolt indepressed through said tip an position while, when the key check 36 issecuring the heat inserted in the guide and the pawl re- 6. In a checkleased, the rack n will engage at its upper tially channel s end againstthe uppermost of the flanges ll shank of the 11 of the back plate 10 forlimiting the lock thereof cooperating with th k look, a hook, d latchhaving provide arms and means exte d the hook shank end of the pawl 1?bolt in its upward movement under the influence of the spring 20.

for locking the bolt when shifted.

channel shape Having thus described the invention, what extended to isclaimed as new is: hook shank,

1. A check lock including a hook, a ivsaid arms an oted latch coactingtherewith, a lock olt necting the latch with said shittable to closelyconfronting the latch at with the hook. one point and project throughthe latch at 8. In a chec another point, and means for locking the bolttially channel when shifted. hook to exten 2. A check lock including ahook, a pivthereof and ha otcd latch cooperating therewith and having toprovide a h a convex face, a lock bolt shiftable to imlatch. ping-e thelatch and having a concave face to 9. In a check lock lit the convexface of the latch for securing a substantially oh the latch against sidemovement, and means thereon and press to provide arms 3. A check lockincluding a hook, a pivpivotally eonnecte shaped latch d transverselproject the other of its rms of the latch, and e bolt when shifted.ncluding a hook, a bolt th and having a medial pening, a rack seatingformed of mating seces engaged through said M to cooperate with the hebolt when shifted. look, a pressed substan aving its side H d of thehook to shoulders at the lower a pressed substantially receiving the tipbes thereof, one of the otched to fit the hook head flanges beingslotnges of the hook seating rs, and means extending d the flanges ofthe head 1 in position.

look, a hook haped latch 00k to exten tially anges form and asubstanivoted upon the across the bight a substantially its side flangesembracing the g through pivotally conshank to coact k look, a hook, anda substanpivoted upon the y across the bight body wall extended he outerend of the a suspension hook, and annel shaped latch pivoted ed from asheet metal blank embracing the hook and otcd latch cooperatingtherewith and having In testimony whereof I afiixmy signature.

spaced arms, a substantially U-shaped lock bolt shiftable to impinge oneof its arms JOHN CLAYTON BACKUS.

